The other day swih aquired a ltr of benz for some L-PAC experimentation. While adding the benz a little trickle was left on the rim of the container which after returning an hour or so later it left a crystal mass. The fermentation didn't go that well, after adding the benz the gas evolution slows right down. For a 20 ltr ferment swih calculated one could add up to 150 ml, from what swih read here on the hive. But after about 50 ml(10ml every hour an a half) fermentation is non-existent. Now after givng the background of my prob I was wondering if some wise bee could tell me if 1; the impurities in the benz are causing the yeast die off and 2; if a normal distillation will purify my benz. By normal I mean usind no vac.
Harry.